Iconeer for Mac

From Ancodia software:

Iconeer is powerful, full featured mac icon creator for Mac OS X icons. Easily creates mac icons of all kinds with real-time preview on virtual desktop, so icons can be seen on different backgrounds instantly.

Iconeer supports all icon suites from standard System 7 icons, through new suite of Mac OS 8 and 9, till photorealistic modern Mac OS X thumbnail icons. Allows easy creation of mac icons of all sizes and color depths from a picture file, clipping, or dragged picture. 1-bit and 8-bit masks can be applied on icons to achieve smooth edges and semi-transparent look. Different pictures can be optionally assigned to each icon size and/or depth which can result in "live" icons that change in dependence on window view, screen color depth, or even system version. Created icons can be saved to disk as a custom icon file, folder with a custom icon, icon resource file, or alternatively directly to clipboard, so you can paste them anywhere you need.

Image Library lets you keep pictures you frequently use, such as transparency masks, in one place so you can access them quickly anytime you need.

Iconeer also includes Iconeezer, the batch icon builder tool, to quickly generate large number of icons from picture files with a single click.

If you need to retrieve pictures from existing icons, icon import functions will help you to convert icon resources back to pictures.

Iconeer is an ideal tool for Mac icon artists and software developers.